OBD II ports are a 16 pin connector that is the same on all cars and trucks since 1996.

The OBD port is almost always located under the dashboard in the driver side if a vehicle.

How to Use a OBD II Diagnostic Tool.
Each scan unit can be slightly different in operation such as the buttons pressed and menu system.

Most will follow the following procedures
1…A scanner tool will need to be bought. There are many types from small and cheap to expensive high end units.

2…The scanner is plugged into a vehicles OBD II port and the key set to the ON position.

3…After pressing a button to scan for codes, a code (or codes) number will be displayed if there is a problem.

4…The number can then be looked up in a book or online to pinpoint the error code meaning.

5…There usually is a option to Clear the Codes which is not a good idea unless they are written down. If a code is erased and the problem not fixed it will come back on.

Understanding OBD2 Codes
Most all code numbers are the same across all cars and trucks so a P0197 Code (Engine Oil Temperature Sensor Low) will have the same meaning on a Ford, Dodge Chevy Toyota and so on.

Manufactures can enhanced the codes a vehicle can give but the basic codes are universal across all vehicles.

After reading a code number it can be looked up in booklets that usually come with a OBD2 tool or can be simply looked up online.

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